On 26/01/2011 18:22, Jacobus Reyneke wrote:
Good day, could someone please tell me what I'm doing wrong here.
I'm trying to copy a XML document with 'play' as route. While doing so
I need to group the 'scene' elements under 'act'. The xsl below works
(almost), but throws out anything that falls under play, but outside
of a scene. I need to preserve (copy) elements that are outside of
'scene'.
I would guess that the scenes for a given act are adjacent, so using
group-adjacent is preferable to using group-by.
So use
<xsl:for-each-group select="*" group-adjacent="(@act, '?')[1]">
<xsl:choose>
<xsl:when test="@act">
<act>
<xsl:apply-templates select="current-group()"/>
</act>
</xsl:when>
<xsl:otherwise>
<xsl:apply-templates select="current-group()"/>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each-group>
The expression (@act, '?')[1] returns the value of @act if present, or
"?" otherwise.
Michael Kay
Saxonica
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
exclude-result-prefixes="xs"
version="2.0">
<xsl:template match="play">
<xsl:for-each-group select="scene"
group-by="@act">
<act>
<xsl:for-each select="current-group()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:for-each>
</act>
</xsl:for-each-group>
</xsl:template>
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
Kind regards,
Jacobus
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